This file is provided FREE OF CHARGE from the electromaniacs.com community You are free to distribute this file to other persons who needs it , but without of charge Also on http://electromaniacs.com you can find thousands of service manuals , schematics free of charge

1

Colour Television

Chassis

L7.3AAA

CL 86532010_001.ai 160298

ServiceManualContent1 2 3 4 5 6 Technical specifications Connection facilities, location of panels Safety instructions, Warnings and Notes Mechanical instructions Repair facilities Software adjustments and Hotel mode Block diagram, Survey of testpoints Diagram supply voltages survey Electrical Diagrams and print lay-outs 2 3 4 6 7 12 13 14 7 Main PWB layout Power supply Main PWB layout Line drive Sync-frame & vertical drive Video Processing Control Sound processing Sound amplifier BTSC decoding CRT PWB/ Audio sound PWB CRT module Nicam sound panel 8 Electrical adjustments 9 Circuit Descriptions new circuits 10 Directions for use (limited) 11 List of abbreviations 12 Spareparts list5 Subject in The Netherlands of Philips. without theby LV permisionService Department Copyright prior 9864 Printed to modificationTV Published reserved 1998 Philips Consumer Electronics B.V. Eindhoven, The Netherlands. All rights reserved. No part of this publication may be reproduced, stored in a retrieval system or transmitted, in any form or by any means, electronic, mechanical, photocopying, or 727 21566 4822 otherwise

diagram A1 diagram A2 diagram A3 diagram A4 diagram A5 diagram A6 diagram A7 diagram A8 diagram B diagram C

Diagram PWB 16 17 16 18 19 18 20 18 21 18 22 18 23 18 24 18 25 18 26 27 26 28 26 29 31 38 46 47

Copyright reserved 1998 Philips Consumer Electronics B.V. Eindhoven, The Netherlands. All rights reserved. No part of this publication may be reproduced, stored in a retrieval system or transmitted, in any form or by any means, electronic, mechanical, photocopying, or otherwise without the prior permision of Philips.

Published by LV 9864 TV Service Department

Printed in The Netherlands

Subject to modification

5 4822 727 21566

2Mains Voltage:1 Technical specifications

L7.3A

1: : : : : : : : : : : : : : : : :

Technical specifications150 - 276 Volt 90 - 276 Volt 50 Hz 60 Hz < 10 Watt 25 : 75Watt +/- 10% 29 : 90 Watt +/- 10% Yes 75 Ohm - coax 25 and 29 27 KVolt 30 KVolt Linitted at 33 Watt 2 X 3 Watt 2 X 5 Watt > 46 dB unweighted > 53 dB weigted

Mains frequency Power Consumption in stand-by Power Consumption normal mode Chassis mains isolated Aerial input impedance TV Picture tube range EHT voltage for 25 EHT voltage for 29 Max EHT power Sound output power Picture S/N at 70uVolts

22

Connection facilitiesConnection facilities

L7.3A

3

VIDEO 2 IN VIDEO

VIDEO 1 IN

OUT VIDEO

ANTENNA IN

L AUDIO R

L AUDIO RCL 86532010_003.ai 160298

IR Red

- + Channel - + VolumeCL 86532010_004.ai 160298

2.1

Cinch- Video - Audio - Audio 1Vpp/75 L(0.5Vrms 10k) R(0.5Vrms 10k) q q q

2.2

Head phone(8 - 600 / 4mW) ot

2.3

Location of panelsCRT PANEL

B

C

NICAM PANEL

MAIN

POWER SUPPLY LINE DRIVE SYNC / FRAME VERTICAL DRIVE VIDEO PROCESSING (BIMOS IC) CONTROL SOUND PROC. + SOUND INTERFACE SOUND AMPLIFIER BTSC DECODING

A1 A2 A3 A4 A5 A6 A7 A8

CL 86532010_005.ai 160298

43.13

L7.3ASafety instructions, Maintenance instruction, Warnings and Notes

3

Safety instructions, Maintenance instruction, When the set is used in circumstances with higher dust, grease or moisture levels, for example in a kitchen, the recommended interval is 1 year. The maintenance inspection contains the following actions: Execute the above mentioned 'general repair instruction'. Clean the power supply and deflection circuitry on the chassis. Clean the picture tube panel and the neck of the picture tube.

Safety instructions for repairs

Figure 3-11. Safety regulations require that during a repair: the set should be connected to the mains via an isolating transformer; safety components, indicated by the symbol (see fig. 3.1), should be replaced by components identical to the original ones; when replacing the CRT, safety goggles must be worn.

3.3

Warnings

2. Safety regulations require that after a repair the set must be returned in its original condition. In particular attention should be paid to the following points. As a strict precaution, we advise you to resolder the solder joints through which the horizontal deflection current is flowing, in particular: all pins of the line output transformer (LOT); fly-back capacitor(s); S-correction capacitor(s); line output transistor; pins of the connector with wires to the deflection coil; other components through which the deflection current flows. Note: This resoldering is advised to prevent bad connections due to metal fatigue in solder joints and is therefore only necessary for television sets older than 2 years. The wire trees and EHT cable should be routed correctly and fixed with the mounted cable clamps. The insulation of the mains lead should be checked for external damage. The mains lead strain relief should be checked for its function in order to avoid touching the CRT, hot components or heat sinks. The electrical DC resistance between the mains plug and the secondary side should be checked (only for sets which have a mains isolated power supply). This check can be done as follows: unplug the mains cord and connect a wire between the two pins of the mains plug; set the mains switch to the on position (keep the mains cord unplugged!); measure the resistance value between the pins of the mains plug and the metal shielding of the tuner or the aerial connection on the set. The reading should be between 4.5 MW and 12 MW; switch off the TV and remove the wire between the two pins of the mains plug. The cabinet should be checked for defects to avoid touching of any inner parts by the customer.

1. ESD All ICs and many other semiconductors are susceptible to electrostatic discharges (ESD). Careless handling during repair can reduce life drastically. When repairing, make sure that you are connected with the same potential as the mass of the set by a wristband with resistance. Keep components and tools also at this same potential. Available ESD protection equipment: anti-static table mat (large 1200x650x1.25mm) 4822 466 10953 anti-static table mat (small 600x650x1.25mm) 4822 466 10958 anti-static wristband 4822 395 10223 connection box (3 press stud connections, 1 M ohm) 4822 320 11307 extension cable (2 m, 2 M ohm; to connect wristband to connection box) 4822 320 11305 connecting cable (3 m, 2 M ohm; to connect table mat to connection box) 4822 320 11306 earth cable (1 M ohm; to connect any product to mat or connection box) 4822 320 11308 complete kit ESD3 (combining all 6 prior products small table mat) 4822 310 10671 wristband tester 4822 344 13999 2. In order to prevent damage to ICs and transistors, all highvoltage flashovers must be avoided. In order to prevent damage to the picture tube, the method shown in Fig. 3.2 should be used to discharge the picture tube. Use a highvoltage probe and a multimeter (position DC-V). Discharge until the meter reading is 0V (after approx. 30s). 3. Together with the deflection unit and any multipole unit, the flat square picture tubes used from an integrated unit. The deflection and the multipole units are set optimally at the factory. Adjustment of this unit during repair is therefore not recommended. 4. Be careful during measurements in the high-voltage section and on the picture tube. 5. Never replace modules or other components while the unit is switched on. 6. When making settings, use plastic rather than metal tools. This will prevent any short circuits and the danger of a circuit becoming unstable. 7. Wear safety goggles during replacement of the picture tube

3.2

Maintenance instructionIt is recommended to have a maintenance inspection carried out by a qualified service employee. The interval depends on the usage conditions: When the set is used under normal circumstances, for example in a living room, the recommended interval is 3 to 5 years.

3.4

Notes1. The direct voltages and oscillograms should be measured with regard to the tuner earth , or hot earth as this is called (see fig. 3.3) 2. The direct voltages and oscillograms shown in the diagrams are indicative and should be measured in the Service Default Mode (see chapter 8) with a colour bar signal and stereo sound (L:3 kHz, R:1 kHz unless stated otherwise) and picture carrier at 475.25 MHz.

3

Safety instructions, Maintenance instruction,3. Where necessary, the oscillograms and direct voltages are measured with and without aerial signal. Voltages in the power supply section are measured both for normal operation and in standby . These values are indicated by means of the appropriate symbols (see fig. 3.3). 4. The picture tube PWB has printed spark gaps. Each spark gap is connected between an electrode of the picture tube and the Aquadag coating. 5. The semiconductors indicated in the circuit diagram and in the parts lists are completely interchangeable per position with the semiconductors in the unit, irrespective of the type indication on these semiconductors.

L7.3A

5

V

CL 26532098/042 140792

Figure 3-2

tuner earth tuner aarde la masse du tuner Tuner-Erde massa del tuner tierra del sintonizador with aerial signal met antenne signaal avec signal d'antenne mit Antennensignal con segnale d'antenna con la seal de antena normal condition normaal bedrijf fonctionnement normal normaler Betrieb funzionamento normale funcionamiento normal

hot earth hete aarde la terre directe heien Erde massa calda tierra caliente without aerial signal zonder antenne signaal sans signal d'antenne .ohne Antennensignal senza segnale d'antenna sin la seal de antena stand by stand by position de veille in Bereitschaft modo di attesa posicin de espera

Figure 3-3

64 Mechanical instructions

L7.3A

4

Mechanical instructions

For the service position of the main carrier see figure 4.1: The main carrier can be removed by releasing the 2 carrier blocking lips (1) and pulling the carrier panel backwards.

1 1

2

A

BFigure 4-1

CL 86532010_002.ai 160298

5

5

Faultfinding tree & Repair facilities

SWITCH - ON TV SET

NO PICTURE ON SCREEN NO PICTURE NO SOUND Peak voltage at pin 6 ic 7520 >2.5v YES

CHECK : CRT VOLTAGE 2841, 3840, 3841, 7930 YES LED CONTINUOUSLY ON

NOOver voltage protection YES Voltage at pin 14 IC7520 Wideband adjustment SPECT -> Spectral adjustment > 7 7 7 19 19

99

Circuit description new circuitsPower supply (diagram A1)Circuit description new circuits

L7.3A

31

9.19.1.1

IntroductionGeneralThe switched mode power supply (SMPS) is mains isolated. The control IC7520 (MC44603AP) gives pulses for driving FET 7518 with duty cycle control at fixed frequency of nominal 40 kHz in normal operation. In stand-by, slow-start and overload situation the SMPS runs at other frequencies than these 40 kHz. Basic characteristics of SMPS : Mains Isolated flyback Converter type Input range : 90 - 276 Volts AC ( multi voltage ) or 150 - 276 Volts AC ( single voltage ). Secondary Sensing by Opto Coupler IC7520 is Featured with a Slow-Start circuitry Over-and undervoltage Protection Circuit of the secondary supply voltages. In case the load decreases under a certain threshold level the SMPS will switch into stand-bymode (in stand-by SMPS is in the so called "reduced frequency mode"; this is nominal about 20 kHz).

diodes (D6550, D6560 and D6570,D6590). The current through the secondary side of the transformer decreases with a linear slope of T5545. During T-dead FET 7518 does not conduct and no energy is extracted from the mains of supplied side, this gives space for T-on and T-off regulation.

9.29.2.1

Primary sideMains input and degaussing Mains voltage: this voltage is filtered by L5500 and 5502, rectified by a diode bridge rectifier 6505 and smoothed by C2508 to the DC input voltage for the SMPS at pin 5 of T5545 (e.g. 300V DC for 220V AC mains). Multi voltage: Only small adaptations of some component values are needed to achieve this. Degaussing : R3504 is a dual PTC (2PTC's in one housing). When switching "on" the set, the PTC is cold and low-ohmic. This would give very high degaussing current. After degaussing the PTC will be heated up and become high-ohmic; during normal operation the degaussing current is very low.

9.2.2

Start up and take over Start-up : Via the start-up circuitry 3510, 3530 and 3529 the voltage coming from 220V AC mains is used to start-up IC7520 via the supply pin 1. As long as pin 1 has not reached 14.5 Volts, IC7520 does not start up and only sinks 0.3mA. If Vpin 1 reaches the 14.5 Volts, IC7520 will start (FET 7518 will conduct) and pin 1 sinks a typical supply current of about 17 mA. This supply current cannot be delivered by the start-up circuitry, so a take-over circuit must be present. If no take-over will take place the voltage on pin 1 will decrease and IC7520 will switch off; in that case the restart procedure will start again. Take over of IC7520: During start-up a voltage across winding 8 - 9 is built up. At the moment the voltage across winding 8 - 9 reaches approx. (14.5 Volts, D6540 start conducting and takes over the supply voltage Vpin 1 of IC7520 (take over current is approx. 17mA).

The (VBATT (+140 Volts for A/P and +130 Volts for LATAM output gives a stabilized (VBATT for 25" and 29" tubes in normal operation and approx. 140 Volts DC for A/P and 130 Volts for LATAM in stand-by mode. IC7541 (=TDA8139) having a stable regulator for +5 Volts and +8 Volts supply and also a built-in protection circuit for +5 Volts and +8 Volts supply is present. If pin 4 is low in the standby mode, the IC disables the supply output voltage of (8Volts, so IC7225 (TDA8374C) line output stage will be shut "down". If no 8 Volts supply is present transistor 7542 will switch on, this will cut off the +VBATT; it also performs a fast CRT discharge. If the power is switched off, pin 6 of IC7541 will be low and the protection circuit starts to shut down the +5 Volts and +8 Volts.

9.1.2

Output voltagesPower output secondary output voltages: 14 Volts for the audio amplifier 13 Volts for the audio processing 5 Volts for the control part (is also available in standby/ reset) 8 Volts for the video processing and Nicam 140 Volts for A/P and (130 Volts for LATAM for the line output stage and the tuning system

Note: This power supply is a SMPS (= Switched Mode Power Supply) and not a SOPS (= Self Oscillating Power Supply).

9.39.3.1

Control circuitry; see page 37 for blockdiagram.IC7520 control mechanismsIC7520 controls the T-on time of FET 7518 in all three operation modes: "Secondary-output-sensing" controls the secondary output voltages via the feedback voltage pin 14. "1-prim current sensing" controls both the secondary output voltages and the maximum 1-prim via the current sense voltage pin 7. "Demagnetization control" prevents the transformer T5545 from going into saturation via the so called "DEMAG" function at pin 8; this will cause slow-start operation.

9.1.3

The switching periods of TS7518The duty cycle of the power supply depends on T-on of FET TS7518 and this is controlled by pin 3 of IC7520. This IC detects the variations of the (VBATT via sensing-winding 8-9 at the primary side of T5545. The switching period of TS7518 can be divided into three main phases: Duty cycle T-on, T-off and T-dead During T-on, FET 7518 will switch on and conducts, so the energy that is extracted from the mains is stored into the primary winding 2-5 of transformer T5545 with a linear increasing primary current. The slope depends on the voltage across C2508. Via T-on regulation by pin 3 of IC7520 the duty cycle of the SMPS and so the (VBATT is controlled. During T-on FET 7518 will switch off and does not conduct, so all energy "inside" the transformer is supplied to the load via secondary windings of T5545 and the secondary

9.3.2

Secondary output voltage's feedback (pin 14 of IC7520)Voltage feedback for T-ON control : Regulation of the SMPS is via pin 14. Winding 2 -5 has the same polarity as winding 16 18, so variations of the +VBATT can be sensed and feed-back to pin 14. The control voltage of winding 2 -5 during off period of TS7518 the Opto-coupler 7581 conducted rectified by D6540, smoothed by 2540 and coupled via 7581 and

32

L7.3A

9

Circuit description new circuitsbalance off feedback voltage Vpin 14 and the internal 2V5 reference voltage, at a new smaller duty cycle. As a result of the shorter T-on, the maximum I-prim decreases, so less energy can be stored in the transformer. In this way less energy will be supplied to the load. In case the demagnetization of the transformer is not yet finished, the positive edge from the oscillator, which will start a new cycle, will be overruled via buffer block D as being the starting point of T-on will be delayed and frequency of the SMPS will go down. This procedure is used during start-up.

adjustable by 3572. For the information at pin 14 of IC7520 controls each portion of energy transferred to the secondary side such that the output voltages remain nearly independent of load variations.

9.3.3

I-prim sensing (pin 7 of IC7520)The current sense voltage at pin 7 is a measure for the I-prim through FET7518. The I-prim is converted into a voltage by R3518. The current sense voltage at pin 7 is used to control both the secondary output voltages and the maximum Iprim (see peak current limiting).

9.3.8

Peak current limitingPeak current limiting is realized by an internal clamp at pin 7. This can never exeeds 1V DC and so the maximum value of Iprim, maximum current through FET 7518, is determined. In case load needs more than the maximum power, by then the Iprim is already at his maximum level so the SMPS will go in overload protection (see also foldback principle explained at overload protection).

9.3.4

Demagnetization control (via pin 8 0f IC7520)Winding 8 - 9 has the same polarity as the secondary windings that are supplying the load. As a result the voltage across this winding is negative during T-on, positive during T-off and oscillating during T-dead. The so called demagnetization (block " DEMAG " in IC7520) function at pin 8 of IC7520 is used for blocking the output pin 3 during the time that there is still energy in the transformer (1sec not zero). This is realized by delaying the T-on until the demagnetization is completely finished. In this way the currents and voltages at the moment of switching "on" the FET are controlled.

9.3.9

Cycle-by-cycle controlThe T-on control is regulated on a cycle-by-cycle basis see block C in IC7520. This means that in every cycle the T-on is determined again. By doing so the secondary voltages control, peak current limitation and all protections is very accurate and fast.

9.3.5

IC7520 controlThe error amplifier (block A ) compares the feedback voltage at pin 14 with an internal reference voltage of 2V5. The output voltage V error-out of this error amplifier is fed to another comparator (block B). This comparator also compares the V error-out and the current sense voltage at pin 7. When the current sense voltage at pin 7 becomes higher than the outputvoltage of the error amplifier V error-out, the comparator B gives a spike (the output of comparator B is the so called current sensing output-voltage Vcs out).

9.3.10 Slow-startAs soon as Vpin 1 > 14.5 Volts DC the SMPS will start-up. This will be done by a slow-start procedure where both the frequency and the duty cycle will be built up. The following three phenomena's will take place during start-up: The frequency will slowly increase to the nominal frequency of 40 kHz for normal operation and 20 kHz for standby). This is realized via the demagnetization function at pin 8; via this "DEMAG" function, FET 7518 will only conduct and T-on will become "high", when T5545 is totally demagnetized. The voltage at pin 5 determines the foldback point. As during start-up this pin 5 is gradually built-up, the foldback point will also gradually increase, see foldback principle explained at overload protection. The duty cycle will slowly increase beginning with the absolute lowest possible duty cycle. The maximum duty cycle is determined by C2530 at pin 11 of IC7520, as C2530 is unchanged at start-up.

9.3.6

Flip flopFlip flop (in block C) drives the output pin 3 via a buffer amplifier (block D). The flip flop is set by the positive edge of the output of the oscillator, V osc and reset by the spike V cs out. As a result the pulse at pin 3 becomes "high" --> T-on starts and by the positive edge of Vosc from the internal oscillator and "low" --> T-on stops by the spike of Vcs out . The T-on start will be delayed in case the transformer is not yet demagnetized; see the slow-start procedures.

9.3.7

Stable load and increasing / decreasing loadIn case of a stable load, the feedback voltage at pin 14 and so also the maximum current sense voltage at pin 7 remains the same; as a result the T-on and the duty cycle will remain the same. In case of an increasing load, the secondary output voltage will decrease. The voltage on pin 14 would also like to decrease which causes a V error -out to increase. As a result comparator B will give the pulse later; pin 3 will be "high" for a longer period (longer T-on so the duty cycle increase) and so the secondary output voltages will be increased (corrected). This will give a new balance of feedback voltage at pin 14 and the internal 2V5 reference voltage, at a new and larger duty cycle. As a result of the longer T-on, the maximum I-prim increases, so more energy will be stored in the transformer. In this way more energy will be supplied to the load. In case of a decreasing load, the secondary output voltage increases. The voltage on pin 14 would like to increase which causes V errorout to decrease. As a result comparator B will give the pulse earlier, Vpin 3 will be "high" for a shorter period (shorter T-on so the duty cycle decrease) and so the secondary output voltages will be decreased (corrected). This will give a new

9.3.11 Standby modeIn standby mode the load will get under a certain threshold level, decrease; see description of standby on the secondary side. The SMPS will determine this threshold level and switch to the so called "reduced frequency mode" at about 20 kHz; this minimal load threshold level is determined by R3532 at pin 12. In the L7.3 chassis the SMPS does not have a burst mode in standby but only a reduced frequency mode of about 20 kHz. In normal operation mode the internal oscillator is about 40 kHz. This frequency is controlled by C2531 at pin 10 of IC7520 and by R3537 at pin 16 of IC7520. In standby mode the internal oscillator is about 20 kHz.; this frequency is controlled by R3536 at pin 15 of IC7520.

9.3.12 FET 7518 gate regulationD6514 prevents pin 3 of IC7520 of becoming negative because this will destroy the IC due to stray inductance in the gate part.

9

Circuit description new circuitsThe safety resistor R3525 limits the drive current to the gate of FET 7518. In a stable situation Vpin 14 is typical 2V4.

L7.3A

33

9.3.13 Typical values for the L7.3 chassis

detected by IC7520 via I-prim and secondary output voltages sensing. In case the load decreases below a certain threshold the SMPS will switch in "reduced frequency mode" of about 20 kHz ; this threshold is determined by the voltage level at pin 12 of IC 7520. REMARK: In case of an unload situation the set will switch to "low frequency mode" or standby mode. Whether this unload situation of the SMPS is caused by the standby command or by a failure e.g. in the line circuitry this can be determined by switching on the set again which the remote control. In case of standby mode the TV will switch "on" again; in case of unload situation the set will NOT switch "on".

Mains Voltage: 90 - 276V multi voltage 150 - 276V single voltage

Mains frequency: 50 Hz , 60 Hz

9.4.4

Overload (short-circuit) protectionIf the secondary load becomes too high, I-prim also becomes too high; this is sensed by the current sense voltage at pin 7. This voltage at pin 7 is not allowed to exceed 1 Volts DC and it has current limiting. As the I-prim is limited, the secondary output voltages will drop and supply voltage at pin 1 will also drop. As soon as pin 1 < 9Volts DC the driving pulses at pin 3 will stop. As a result of these two mechanisms in case of an overload the secondary voltages will drop very fast, this is called the foldback mechanism. The foldback point can be adjusted by pin 5 of IC7520 and this point is adjusted to a maximum tolerable output power of 85W at 90 Volts AC and 165W at 276Volts AC. After this foldback the IC starts up again (see slow-start); in case the overload situation remains present, the SMPS will give foldback again, slow-start, etc.: as a result in case of short-circuit or overload the TV will be in a good audible hick-up mode.

Power consumption 25" 29"

in normal mode: 75W + /- 10% 90W +/- 10%

Power Consumption in stand-by mode: 11W

9.49.4.1

ProtectionsOver voltage protection of the secondary voltagesAfter start-up the supply voltage pin 1 will be take over by positive winding 8 - 9 and after start up pin 1 is the measuring point for the secondary output voltage. After start-up via an internal switch pin 1 is internally tapped (voltage divider) to a voltage which can be measured at pin 6; pin 6 is also a measuring point for the secondary output voltages. If the voltage at pin 6 > 2.5 Volts, the logic in IC 7520 will shut down the output pin 3. This 2.5 Volts threshold at pin 6 is equivalent to 16 Volts DC which is equivalent to a voltage at the supply voltage (V BATT of approx. 108 Volts DC in normal operation and 130 Volts DC in standby. After switching "off", the IC starts up again because of over voltage protection; see slow-start. REMARK: In case an overvoltage situation is sensed at the secondary output voltages, the SMPS will go in protection; in case the overvoltage situation remains present the SMPS will start slow, etc.; this is a very good audible hick-up mode.

9.59.5.1

Secondary sideOutput voltagesSee 9.1.2 for output voltages.

9.5.2

Regulator IC TDA 8319 (7541)This is a low-dropout regulator. This IC has an output voltage of +5 Volts , +8 Volts and RESET signal; the input is 11 Volts. The Pin configuration of this IC is listed below: Pin 1 of the IC is input 1 and the output 1 pin 9 that is +5 Volts DC. Pin 2 of the IC is input 2 and the output 1 pin 8 that is +8 Volts DC. Pin 3 of the IC is a timing capacitor input and controls the turn-on delay of the reset signal. Pin 4 of the IC is a disable pin connected to standby pin of the microcontroller, if the voltage below 0.5 Volts the +8 Volts output will be disabled. Pin 5 of the IC is a common ground . Pin 6 of the IC is a reset voltage output connected to the microcontroller. This reset output is developed with respect +5 Volts output level of 4.95 Volts. Pin 7 of the IC is a program pin for output 2, in this circuit this output pin 8 is programmed to +8.2 Volts by resistors 3552, 3553 and 3554.

9.4.2

Under voltage protection of the secondary voltages If the supply voltage at pin 1 < 9 Volts DC the output pulse at pin 3 will be shut down. Note: The DC voltage at pin 1 is equivalent to a voltage at V BATT of approx. 70V DC in normal operation and the voltage at pin 1 of 7.5 Volts is equivalent to a voltage at (V BATT of approx. 55V DC in normal operation and 65V DC in standby. In case an over voltage situation is sensed at the secondary output voltages, the SMPS will first switch "off" the pulses and later the complete IC 7520 will be switched "off". In case the IC 7520 is switched "off" also the SMPS will switch "off". In case the under voltage situation remains present, the SMPS will give under voltage protection like slow-start, etc; this is a very good audible hick-up mode.

Other features of this IC: Built-in thermal protection. Built-in over current and short circuit protection for +5 Volts and +8Volts. Low dropout voltage

9.4.3

Unload protectionIn case the load goes down e.g. the line goes down because of stand-by mode or some failure in the line circuitry this will be

349.6

L7.3A

9

Circuit description new circuits9.6.2 PAL/NTSC Processing (IC7225-5B, see diagram A6)IC7225-5B contains : source selector and PAL/NTSC colour decoder. The main functions are : Source Selection The input selector has CVBS_INT< CVBS_EXT1,Y_CVBSEXT2, C_EXT2 as inputs which can be selected via the 12C bus. Colour Decoder; the main functions are : PLL/VCO The PLL operates during the burst key period. It synchronizes the VCXO oscillator with the frequency and phase of the incoming chroma burst. For alternating burst (PAL standards), a loop filter enables the PLL to synchronize with the average burst (180 degrees phase). PAL/NTSC Identification Secam Interface The 0 and 90 degrees reference signals from the VCO oscillator are supplied via the HUE phase circuit to the (BY) and (R-Y) burst demodulators respectively. The demodulated burst from the (B-Y) burst demodulator is supplied both to ACC detector and NTSC indent circuit; the NSTC indent circuit is an integrator. Once the integrator output exceeds the NTSC killer level, an NTSC burst has been identified (IDN=1). Therefore the IDN information provided the ASM (Automatic System Manager) with NTSC colour indent information. The demodulated burst from the burst from the (R-Y) burst demodulator is supplied to the PAL identcircuit via a AL switch; the PAL ident circuit is also an integrator. Once the integrator output exceed the PAL killer level, a PAL burst has been identified (IDP=1). The IDP information provides the ASM with PAL-colour ident information. The SECAM interface allows bi-directional communication between IC7241 (TDA8395) and the ASM for SECAM identification. If the VCO oscillator is oscillating at 4.43 MHz, the reference frequency of 4.43mhz is superimposed on a DC level and is supplied from pin 33 of IC7225 to pin 1 of IC7241. If PAL/NTSC signals are identified, the reference frequency is continuously available at pin 33 and superimposed on a 1.5V DC level. When SECAM is identified by IC7241, the reference signals which is generated in packets form and superimposed on a 5V DC level is supplied to pin 33 of IC7225.The ident signal (IDSM=1) is supplied to the ASM. ASM (Automatic System Manager) (R-Y)/(B-Y) demodulation The ASM is able to decode PAL/NTSC colour standards and in combination with IC7241(TDA8395), multi standard applications can be realized. The different possibilities are controlled by the 12C bus input commands which are communicated to the ASM via the 12C bus. The 12C bus input commands also indicates which crystals must be connected to pins 34 and 35. This is essential for correct calibration of the horizontal oscillator. For PAL/NTSC standards, the (B-Y)/(R-Y) baseband signals are extracted from the chroma signal by the (B-Y)/ (R-Y) demodulators, filtered and supplied via the output switch to pins 29 and 30. If SECAM is identified by the SECAM decoder IC7241 and no PAL/NTSC is identified by the ASM, then the ASM will open the switch (B-Y)/(R-Y). This implies (B-Y)/(R-Y) signals from the SECAM decoder will be directly connected to pin 29 and 30 without extra loading.

SINGLE CHIP PROCESSOR IC7225 (=TDA8374)Introduction : In this chip most of the video, audio and sync circuits are integrated and in the diagrams the IC is split up into 5 parts: 5A,5B,5C,5D and 5E. IC7225-5A, video detector ,see diagram A4. IC7225-5B, source select en PAL demodulator ,see diagram A6. IC7225-5C, video control, see diagram A4. IC7225-5D, horizontal and vertical sync, see diagram A3. IC7225-5E, mono sound demodulator, see diagram A4.

9.6.1

IC7225-5A, IF video detector, see diagram A4Tuning system For the tuner 1000 there are two possibilities: VST type or PLL type and in both cases the tuner is controlled by the uC. The VST tuner is controlled via V_TUNE, AFC and the BS1, BS2 band switching signals; the PLL tuner is fully I2C controlled. IC 7225-5A contains the IF amplifier and the IF detector, the IF signal is present at the output pin 11 of the tuner. BS1 and BS2 (pin 17-18) switching signals used for band switching of a VST tuner.

BS1 VHF1 VHF2 UHF 0 1 1

BS2 1 0 1

IF bands pass filter , the IF bands pass characteristic is determined by the band-pass of the SAW filter 1015, listed below you will find the possibilities : For PAL BG sets a SAW filter with 5.5 MHz bandwidth is used (33.4 to 38.9 MHz). For PAL 1 sets a SAW filter with a bandwidth of 6.0 MHz is used (32.9 to 38.9 MHz). For PAL BG/SECAM BG/LL' sets a SAW filter with 6.5 MHz band switch is used to enable BG/I/LL' reception (33.9 to 40.4 MHz). For PAL BG/SECAM BG/DK sets a SAW filter with a bandwidth of 6.5 MHz is used (32.4 to 38.9 MHz).

IF-demodulator IF-demodulation is done with reference circuit L5260 at pin 3 and 4 of IC7225-5A; AGC control of tuner via pin 54 IC72255A. Top sync level is used for AGC inside IC7225-5A. AGC adjustment is done by 1(C control via entry into the SAM service menu. C2202 at pin 53 determines time constant of the AGC. Base band CVBS signal at pin 6 of IC7225-5A (normal 3V2) is fed to the sound trap filters (1206, 1207, 1208, 1209 and 5206) and returns to pin 13 of IC7225-5B for source selection and video processing (diagram A6). The NTSC_ SW signal from the control microprocessor switches on transistors 7216 and 7217 to activate filter 1209 when an NTSC signal is received. Demodulation for sound IF takes place for the various signals as follows: For single mono signal, the CVBS_Sound signal goes to filter 1104 for 4.5 MHz and filter 1102 for 5.5MHz. The sound _IF is connected to pin 1 of IC7225-5E for demodulation.

99.6.3

Circuit description new circuitsVideo controller (IC7225-5C, see diagram A4)The main functions are : Y/(B-Y)/(R-Y) signal processing/matrix RGB signal selection/processing/output stages Black stretcher Beam current limiter (BCL,PWL) Automatic black current stabilization (ABS) .

L7.3A

35

In case of no TXT another (C is used with less pins. This uC is indicated in the diagrams with the internal pin numbering.

In the description below, the pin numbers are the numbers mentioned outside the housing of IC 7600 (IC7600 with TXT and IC7601 without TXT). In case of the (C with integrated teletext function the CVBS-TXT signal is fed to pin 23, the TXT and OSD- information are combined at pins 32,33 and 34. Before the RGB signal selection the RGB signals are clamped to similar DC level during burst key period. The selection is controlled by the RGB insertion input voltage at pin 26.

Y/(B-Y)/(R-Y) signal processing/matrix The luminance at pin 27 is internally AC coupled to the luminance clamp, which is operational during burst key period. The luminance signal is supplied to the RGB matrix circuit via the black stretcher. The (B-Y)/(R-Y) signals supplied to pins 31 and 32 are clamped during the burst key period. The signals are then supplied to the colour difference matrix to select the desired matrix formv either PAL, NTSC or Japanese NTSC matrix. The selected matrix is controlled via the 12C bus. For RGB matrix the signal outputs from the colour difference matrix are added with the luminance signal in colour to generate the internal RGB signals. RGB signal selection/processing/output stages Within the RGB signal selection there are three modes: RGB (internal) Fast RGB insertion (R_TXT G_TXT B_TXT on pins 23, 24 and 25) OSD-mode

Voltage at pin 26 < 0.3V 0.9V < V < 3V

selected RGB signals RGB(internal) (R_TXT G_TXT B_TXT (fast insertion at pins 23, 24 and 25) OSD can be inserted at the RGB-out pins

> 4V

The contrast, brightness and white-point RGB adjustment on the selected RGB signals are controlled by 12C commands. After the adjustment, three RGB black levels are added to the RGB signals. These three signals are blanked when the RGB blank signal is active. The RGB output stages supply the buffered RGB signals pins 21, 20 and 19. Black Stretcher The black stretcher circuit, which is only operational during line scan, extends the gray signal level towards the actual black level (= actual black level measured during burstkey). The amount of extension is dependent on the difference between actual black level and the darkest part of the incoming video signal. The darkest part of the videosignal is registered in the capacitor at pin 39 by means of an internal discharge current of approximately 130uA. The black stretcher is made inactive if the voltage at pin 39 is set to ground. This is done by turning on transistor 7220, the command blackstraw coming from the microprocessor (if power button on the remote control unit is activated). Beam Current Limiter The beam current limiter circuit functions as an average white limiter as well as peak white limiter. The average white limiter needs external circuitry comprising of 7265, and associated components to function; the peak white limiter is an internal detection circuit. The function of the beam current limiter (average white / peak white limiter) reduces the contrast and brightness of RGB signals. For beam current limiting, the difference in beam current (1BCL) and an internal charge current (1CHARGE) is stored in capacitor 2460 on pin 22. If 1BCL > 1CHARGE voltage (VBCL) at pin 22 will decrease. For beam current limiter contrast reduction begins if VBCL < 3.5V and brightness reduction begins if VBCL < 2.5V. VBCL is normally about 4V if the beam current limiter is not active . The contrast and/or brightness reduction of the RGBout is proportional to the voltage decrease at pin 22.

Teletext Two different types of microprocessors IC7600/7601 are used: one with teletext(TXT) and one without teletext. The micro-controllers are:

P83Cx66

42 pins

Normal

ROM size varies ROM size varies ROM size varies

SAA529x

52 pins

Control withTeletext Control with Close caption

P83CX69

52 pins

Type of microcontroller P83Cx66

Type of tuning

System

Countries

VST PLL

PAL/SECAM NTSC PAL/SECAM BiNorma/ TriNorma

AP Latam AP Latam

SAA529x P83Cx169

VST PLL

The oscillator to be used is 12MHz; a crystal oscillator will be used for all the micro-controllers. In case of TXT this function is integrated together with the control part in one and the same uC. This uC is indicated in the diagrams with the outer pin numbering.

9.6.4

Horizontal synchronization IC 7225-5D and the line output stage (see diagram A3)Protections: The line deflection incorporates protections like:

36

L7.3A

9

Circuit description new circuitspresent; the sandcastle pulse is applied to several parts of the circuits for timing purposes. Frame amplifier In principal the frame output stage IC 7401 (TDA9302H) is used for the vertical deflection. This IC is controlled at pins 1 and 3 by the vertical control signal of IC 7225-5D and a deflection current is generated at pin 5. The vertical flyback signal is generated at pin 3 of this IC. Protection of IC 7401; depending on +11V and -11V supply to drive the vertical deflection CRT. In case of supply voltage +11V or -11V needs a too high current, the VFL pin 3 of IC 7401 voltage will drop < 6.5V. As a result the VFL will feedback this to pin 37 of 7600 micro processor and this will switch the supply to stand-by mode.

X-ray protection. If the EHT will become too high, the tube will radiate too much X-ray, this is detected by monitoring the flyback pulses at pin 11 of the LOT. Beam current protection. If the beamcurrent becomes too high the Bimos is able to reduces this by making the EHT_info line low. The circuitry around transistor 7481 in circuit diagram A2, will detect this and create a PROT signal. The E/W amplifier has two protections. One protection for overcurrent, for exampleshort circuit of E/W FET and one protection for overvoltage; like interrupted capacitor in lower half of the diode modulator.

Start-up of the horizontal oscillator via the (8V gives a start-up current to pin 37; if the voltage on pin 37 exceeds 5V6 the horizontal oscillator starts to oscillates at approx. 25kHz. Only if the supply pin of IC 7225 (= pin 12 at IC 7225-5A in diagram A4) becomes 8V the line frequency will change to 15625 Hz. The horizontal synchronization separator separates horizontal pulses out of CVBS signals and synchronizes the free-running horizontal sawtooth generator. The horizontal oscillator sawtooth is converted into a square wave voltage with variable duty cycle. This square wave at pin 40 is fed to the line output stage. The time constant of the synchronization circuit is automatically internally determined by IC 7225-5D. Pin 41 is SANDCASTLE output and also HORIZONTAL FLYBACK input. The SANDCASTLE has an output current a some mA, the amplitudes of sandcastle pulse is : burst 5V3, line blanking 3V and during frame blanking 2V. If the input acts as a HORIZONTAL FLYBACK pulse, the input has a current of 100-300 mA. This horizontal flyback pulse compares the phase of flyback pulse with phase of the horizontal oscillator; if the phase is not correct the duty cycle of horizontal oscillator will be adjusted. Flash protection: The BCI info is applied to pin 42 of IC7225-5D. If due to a flash in the picture tube the voltage at pin 42 is > 6V, the horizontal drive will be switched off immediately. If the voltage is again < 6V the horizontal drive will be switched on again via the slow start procedure. EHT over voltage protection. The BCI info is also applied to pin 50 of IC7225-5D. First the BCI will compensate vertical picture amplitude variations due to beam current variations. The control range is between 1.2V and 2.8V. However if the voltage at pin 50 exceeds 3.9V the EHT overvoltage protection will be activated and the horizontal drive is switched off.

9.6.5

Sound detector (IC7225-5E, diagram A4)Single FM-mono sound for demodulation will take place in IC7225-5E. No adjustment are required because of automatic PLL tuning from 4.2 to 6.8 MHz .

9.7

Information of NVRam, tuners, video and audio I.C.'s.The following components are also applied in this chassis: IC7620 in circuit diagram A5: NVRAM : ST24W04B1 (NonVolatile Memory). The ST24W04B1 is a 4k bit EEPROM device. The enable pins E1 and E2 selects between maximal four different ST24W04B ICs. Last status of a set is stored in the EEPROM and can be retrieved whenever there is a power interruption Tuner 1000 in circuit diagram A4: UV1355 or UV1336 is applied : The list of tuners is as follows: For 25 and 29 AP, tuner type UV1335 is used; Type of tuning is VST. For 25 and 29 Latam, tuner type UV1336 is used; Type of tuning is PLL. Audio IC's: IC7310: TDA9860, Audio processor IC IC7315: TDA9850, BTSC DBX decoder with SAP IC7312: AN 7312, AVC= automatic Volume Correction IC7202: MSP3410D, Nicam stereo decoder IC7202: MSP3400C, 2CS Korea and 2CS German decoder IC7313: HEF4052, switch function IC IC7311: TDA7057A , 2X3W stereo sound amplifier

The line output circuitry In principle the line output stage pin 40 of IC 7225-5D drives the line output stage consisting of TS 7445 and transformer 5445 via drivers TS 7440-7441. The line output stage supplies the deflection current and the following supply voltages (see also the power supply block diagram ) : Output voltage (See diagram A2) LOT (5445 Line output transformer) output voltage EHT, + 200V, Vg2, focus and ff for the picture tube. 200V for the CRT drive + 5V for the control and tuner supply + 9V for the tuner supply + 11V for the control and vertical drive output - 11V for the vertical drive output

For European and A/P sets we can have 2CS, mono/stereo/ dual sound: this is decoded by IC7202(=MSP3400/MSP3410) on Nicam sound panel "C". Also Nicam mono/stereo/dual sound is decoded by IC7202. For A/P, Latam and USA we use the BTSC decoding ; see IC7315 in circuit diagram A8. NTSC/SECAM sound system IC (BTSC decoding IC) General description of BTSC specifications The BTSC sound system is based on the AM-FM method and is capable of broadcasting: MONO information {only MONO Carrier modulated} STEREO information {MONO C -> 1/2(L+R) and STEREO SC -> 1/2(L-R)} DUAL information {MONO C -> language A and SAP SC > language B}

Vertical synchronization IC 7225-5D and the frame amplifier IC 7401 The vertical oscillator (= 50Hz) is controlled by the incoming video signal. The vertical output is driven in anti-phase via the pins 46 and 47. At pin 41 the so called "Sandcastle " pulse is

9

Circuit description new circuits STEREO & SAP information STEREO: {MONO C -> 1/2(L+R) and STEREO SC-> 1/ 2(L-R)} and SAP:{second audio channel}

L7.3A

37

The sinlge FM-mono sound decoding will take place in IC7225E; see circuit diagram A4. IC7312 (= AN7318S) in diagram A7 is an Automatic Volume Correction (AVC) present. Automatic volume correction (AVC) function provides a constant output level of -18dBFS for input levels between 0dBFS and -24dBFS. In this way it is possible

to adjust different sound sources (eg Terrestric/SAT channels, SCART) to equal volume level. The increased volume of advertising is compensated as well. The volume correction step width is quasi continuosly. The filter maximum is performed with an attack time of 16ms and a programmable decay time i.e 8,4,2 sec and 20ms IC7311: TDA7057AQ in circuit diagram A7 is a 2X3W stereo sound amplifier.

BLOCK DIAGRAM MC44603PRref 16 Vref DEMAGNETIZATION DETECTION 8 DEMAGNETIZATION MANAGEMENT Vdemag out reference block supply & initialisation block UVLO1 UVLO2 18V Iref Vcc enable VCC 1

Vosc prot Iref SYNCHRONIZATION INPUT VPIN 10 Vref 9 OSCILLATOR Vosc Set Q BUFFER

2 VC

3 OUTPUT VPIN 3

CT 10 RF ST-BY 15 RP ST-BY 12 STAND-BY(REDUCED FREQUENCY)

D4 GND

C

PWM LATCH Reset

Iref Vcs out THERMAL SHUTDOWN Vref Vcc

Vref/2 VOLTAGE FEEDBACK 14 INPUT E/A OUTPUT 13

+ AMP -

Verror

A

CURRENT SENSE

Iref

OVER VOLTAGE MANAGEMENT UVLO1 Vcc enable UVLO2 Vcc enable

5

OVERVOLTAGE PROTECTION

B

Dmax & SOFT-START CONTROL

FOLDBACK

5 FOLDBACK INPUT

7 CURRENT SENSE INPUT VPIN 7

11 SOFT START (Css) / Dmax (RDmax) VOLTAGE MODE CONTROL

MC44603CL 56532018/012 080695

Figure 9-1

10

38Direction for use

L7.3A

Connecting peripheral equipmentEquipment such as VCR, Laser disc player, VCD etc. could be connected to the video and audio (AV) sockets at the back of the TV. Switch off the TV and equipment before making any connection.

The TVs controlsFor 25PT models3 4 5

10 Direction for use

Connection for playbackVIDEO 2 in VIDEO 1 MONITOR out in VIDEO

4

3n

L VOLUME K

CHANNEL

1.

Connect to AV sockets1 2 6

L AUDIO R

OR

VCR VCR OR VCD

Laser disc player

connect the corresponding sockets of the equipment to that of the TV. to view the playback, select a channel named AV1 (if connection is made to sockets at VIDEO 1 in) or AV2 (if connection is made to sockets at VIDEO 2 in). Note : If you have connected a computer game set to VIDEO 1 in, select a channel named GAME1 to playback. If your connection is made to VIDEO 2 in, then select GAME2 to playback.

For 29PT models

3

4 5

3n

L VOLUME K

CHANNEL

1

2 Switch on or off the TV.

6

2.

Connect to aerial socket

1. Mains power 2. Red light indicator

VIDEO 2 in

VIDEO 1 MONITOR out in VIDEO

75 g

L AUDIO R

(only for VCR) The playback on your VCR is considered a TV channel by your TV if you connect via the aerial socket. You must tune in to your VCRs test signal and assign the channel number 0 to it. Refer to your VCRs instruction manual for more details. connect the RF cable to the VCRs RF in and connect the RF out of the VCR to the aerial socket of the TV. select channel 0 and tune in to to your VCRs signal. to view the playback, select channel 0.

When light is on, it indicates that the TV is on standby. Note :If no signal is detected by the TV after 10 minutes, it will switch to standby automatically. For the remote control to work, it must be activated within the operating range of this sensor. For connection of headphones. To adjust volume level. Press these 2 keys simultaneously will call up the 1st level menu. Press these 2 keys again will exit menu. Works as cursor left (VOLUME L) or right (VOLUME K) in a menu. To select a lower or higher channel number. Works as cursor up (CHANNEL 6) or down (CHANNEL 7) in a menu.

3. Remote control sensor

4. Headphone socket 5. Volume adjustment

6. Channel selection

5

7

Using the remote controlusing the remote controlPress : Result : TV mode : Adjust the volume of the TV set. In a menu : Select or execute.VOL

10 Direction for use

For the remote control to work effectively, it has to be operated within the recommended operating range to the remote control sensor on the TV.

VOL

45

45

10 m

Volume adjustment /cursor right or left

OSD

2

VOL

CH

OSD

VOL

MENU

H

CH

AV

1

2

3

2CH VOL MENU

Digit

4

5

6

7

8

9

b

SURF

A/CH

0

0to

y

h

f

e 4

VOL

SMART

GAME

PICTURE SOUND

HCH AV

1 4 7bSURF

2 5 8A/CH

3 6 9SURF

9

Press :0hSMART GAME

Result :A/CH

Key in numerals e.g. confidential code in child lock and in channel selection. For a 2-digit channel, the second numeral must be entered before the dash disappears.

OSDy f e 4

Screen information Surf or alternate channel

In TV mode : Display channel number and sound mode In a menu : Exit menu.PICTURE SOUND

2

Standby

Surf mode : Add or delete channel from the surf list. View channel in the surf list. A/CH mode : Return to the previous channel.

OSD

2

SURF

Teletext function:b

VOL

CH

VOL

Switch off TV and a red indicator lights up. To switch on TV again, press either the 0 to 9 , CH , CH A/CH , , AV or 2 key.

MENU

Refer to the section on Teletext.hSMART

H

CH

AV

AV

1

2

3

External source

Select the external channels AV1 or AV2.

y

f

e 4SLEEPTIMER GAME

4

5

6

7

8

9

H

Mute

b

SURF

A/CH

0

y

h

f

e 4

Switch off the sound of the TV. Press again to switch on the sound.

PICTURE SOUND

SMART

GAME

MENU

Menu

e 4

PICTURE SOUND

Call up the main menu. If there is an existing menu, pressing this key will bring you back to the previous level menu. If you are in the 1st level menu, pressing this will exit the menu.

Sound mode

Switch from stereo to mono sound (for stereo transmission) or choose between first language or second language (for bilingual transmission).GAME

Game

Select preset channels for games.SMART

CH CH

Channel selection/ cursor up or down

TV mode : Select a higher or lower channel number . In a menu : Scroll up or down.

Smart controlsPICTURE SOUND

Select the presets for sound and picture.

L7.3A

8

9

39

40 L7.3A

Menus1st levelBRIGHTNESS COLOUR CONTRAST SHARPNESS HUE COLOUR TEMP CONTRAST PLUS VOLUME BALANCE TREBLE BASS INCREDIBLE ST AVL SLEEPTIMER CHILD LOCK SURF INSTALLATION 44 28 55 53 0 COOL OFF 19 0 50 50 OFF OFF OFF B A/CH B LANGUAGE AUTO STORE SWAP SKIP MANUAL ENG B B B B CODE CHANNEL LOCK 4 NO FROM TO EXCHANGE 3 4 B

Installing the TV2nd level 3rd level

Selecting the menu languageCHILD LOCK SURF INSTALLATION BRIGHTNESS COLOUR B A/CH B 44 28

1. Call up 1st level menu with the key. 2. Scroll up with the INSTALLATION.

MENU

10 Direction for use

key to highlight

CHANNEL SKIP

7 NO

LANGUAGE AUTO STORE SWAP

ENG B B

3. Select INSTALLATION with the key. LANGUAGE is highlighted.

or

SYSTEM SEARCH FINE TUNE CHANNEL STORE

AUTO VHF1B 2 B

4. Select the language of your choice with the or key. From now on, all menus and screen information will be in the language that you have chosen.OSD

5. Exit with the

key.

Tuning in the TV channelsThere are 2 ways to tune in channels : automatically (by AUTO STORE) or manually (by MANUAL menu). To call up the 1st level menu : Press MENU key.OSD CH MENU

Auto storeCHILD LOCK SURF INSTALLATION BRIGHTNESS COLOUR B A/CH B 44 28

2VOL

Use to tune in channels automatically. 1. Call up 1st level menu with the MENU key. 2. Scroll up with the INSTALLATION.ENG B B B

VOL

H

CH

To use the menus: Press the cursor keys.

AV

key to highlight

1 4 7b

2 5 8 0h f

3 6 9SURF

VOL

CH MENU CH

VOL

VOL

CH MENU CH

VOL

VOL

CH MENU CH

VOL

VOL

CH MENU CH

VOL

A/CH

LANGUAGE AUTO STORE SWAP SKIP

3. Select INSTALLATION with the key. key to 4. Scroll down with the highlight AUTO STORE.

or

y

e 4GAME

SMART

scroll up

scroll down

select or executeAUTO STORE 15

PICTURE SOUND

To exit from a menu: Press MENU key to go back to the previous level. OR OSD Press key to exit.

5. Select AUTO STORE with the or key. A tuning bar appears and the TV will automatically store all available channels. Channels will be stored starting from the next channel number .

10

11

10 Direction for use

installing the tv

installing the tv

ManualCHILD LOCK SURF INSTALLATION BRIGHTNESS COLOUR SWAP SKIP MANUAL B A/CH B 44 28 B B B

This menu enables you to search and store every available channel manually. 1. Call up 1st level menu with the MENU key. 2. Scroll up with the INSTALLATION. key to highlight

How to deal with poor picture receptionYou can use these 3 ways to deal with poor picture reception of your TV Skip channels System selection (for multi and dual system sets only) Fine tuning

Do the following steps to go into INSTALLATION menu.or 1. Call up 1st level menu with the MENU key. 2. Scroll up with the key to highlight INSTALLATION. 3. Select INSTALLATION with the or key.CHILD LOCK SURF INSTALLATION BRIGHTNESS COLOUR B A/CH B 44 28

3. Select INSTALLATION with the key. 4. Scroll down with the light MANUAL .

key to high-

SYSTEM SEARCH FINE TUNE

AUTO VHF1B

5. Select MANUAL with the 6. Scroll down with the light SEARCH.

or

key.

key to high-

SYSTEM SEARCH FINE TUNE CHANNEL SYSTEM SEARCH FINE TUNE CHANNEL STORE AUTO VHF1B 6 B

AUTO VHF1B 6

Skip channelsAUTO STORE SWAP SKIP MANUAL B B B B

7. Select the band (UHF, VHF1 or VHF3) with the key. key to start searching. 8. Press the Searching stops once a channel is available. If you decide to store the channel, proceed to the next step. If not, press the key to start searching again. 9. If you wish to fine tune the channel, scroll down to highlight FINE TUNE. Press the or key to fine tune. key to high10. Scroll down with the light CHANNEL and assign a channel number to the channel that you found.

This menu enables you to skip channels which have bad reception or channels which you do not watched often. Once a channel is skipped, you will not be able to CH keys. select it with the CH or 1. Scroll down with the highlight SKIP. key to

SEARCH FINE TUNE CHANNEL STORE

VHF1B 4 B

CHANNEL SKIP

6 NO

2. Select with the or key. CHANNEL is highlighted. 3. Enter a channel number. 4. Scroll down with the highlight SKIP. key to

FINE TUNE CHANNEL STORE

CHANNEL SKIP

6 NO

4 B

FINE TUNE CHANNEL STORED

4

11. Scroll down with the key to highlight STORE and press the or key to store the channel.OSD

CHANNEL 6 SKIP YES CHANNEL DELETED

5. Select YES with the or key. CHANNEL DELETED appears to confirm that the channel is skipped. To unskip channels, repeat step 3 to 5 but select NO instead of YES.OSD

L7.3A

12. Exit with the

key.

6. Exit with the

key.

13

14

41

42 L7.3A

installing the tv

Sound settingsSystem selection

Personal settingsYou can do adjustment on VOLUME, BALANCE, TREBLE and BASS of a picture via the 1st level menu. Adjustment on treble and bass will automatically be stored in the PERSONAL mode of the SMART SOUND feature.

SWAP SKIP MANUAL

B B B

For multi system sets: This feature enables you to select either PAL-BG, PAL-I, PAL-DK, SECAM-DK, NTSC M or AUTO. If AUTO is selected, it means that the system is automatically selected according to the current transmission. For dual system sets: This feature enables you to select either PAL-DK or PAL-I. For single system sets: This feature is not selectable. 1. Scroll down with the highlight MANUAL . SYSTEM is highlighted. 2. Press the or suitable system.OSD

10 Direction for use

How to do adjustment1. Call up 1st level menu with the MENU key. 2. Scroll up or down with the or key to highlight the item that you wish to adjust. 3. Select or adjust with the or key. OSD 4. Exit with the key.SURF INSTALLATION BRIGHTNESS COLOUR CONTRAST A/CH B 44 28 55 COLOUR CONTRAST PLUS VOLUME BALANCE TREBLE 28 OFF 19 O 50 VOLUME BALANCE TREBLE BASS INCREDIBLE ST 30 O 50 50 OFF

SYSTEM SEARCH FINE TUNE

PAL-DK VHF1B

key to

OSD CH MENU

2VOL

VOL

H

CH

AV

1

2 5 8 0h f

3 6 9SURF

key to select ab

4 7y

A/CH

e 4GAME

3. Exit with the

key.

SMART

VOLUME BALANCE TREBLE BASS INCREDIBLE ST BALANCE TREBLE BASS INCREDIBLE ST AVL 10 40 50 OFF OFF

30 10 50 50 OFF

PICTURE SOUND

Incredible stereoA feature to enhance stereo sound. Adjustment done will automatically be stored in the PERSONAL mode of the SMART SOUND feature. 1. Call up 1st level menu with the MENU key. 2. Scroll down with the key to highlight INCREDIBLE ST. 3. Select ON with the or key. OSD 4. Exit with the key.SURF INSTALLATION BRIGHTNESS COLOUR CONTRAST A/CH B 44 28 55 TREBLE BASS INCREDIBLE ST AVL SLEEPTIMER 40 50 OFF OFF OFF TREBLE BASS INCREDIBLE ST AVL SLEEPTIMER 40 50 ON OFF OFF

15

19

10 Direction for use

sound settings

Other featuresSleeptimerSets timer to switch TV to standby in steps of 15 minutes to a maximum of 120 minutes. To disable timer, set to OFF.

AVL-Auto Volume LevellerThis feature if switched on will automatically adjust any sudden changes in the TVs volume to a preset level. 1. Call up 1st level menu with the MENU key. 2. Scroll down with the key to highlight AVL. 3. Select ON with the or key. OSD 4. Exit with the key.SURF INSTALLATION BRIGHTNESS COLOUR CONTRAST A/CH B 44 28 55 BASS INCREDIBLE ST AVL SLEEPTIMER CHILD LOCK 50 OFF OFF OFF B BASS INCREDIBLE ST AVL SLEEPTIMER CHILD LOCK 50 OFF ON OFF B

To set timerSURF INSTALLATION BRIGHTNESS COLOUR CONTRAST A/CH B 44 28 55 OFF OFF OFF B SURF

1. Call up 1st level menu with the key. 2. Scroll down with the highlight SLEEPTIMER. key to

MENU

INCREDIBLE ST AVL SLEEPTIMER CHILD LOCK SURF INCREDIBLE ST AVL SLEEPTIMER CHILD LOCK SURF OFF OFF 30 B SURF

3. Select time period with the key.OSD

or

Smart SoundThese are some sound presets on the TV for your viewing pleasure. Press the key repeatedly to select VOICE, MUSIC, THEATRE or PERSONAL*.SMART SOUND

4. Exit with the

key.

(Note *: NORMAL for certain model)

OSD CH MENU

2VOL

VOICE

Emphasizes speech frequency.

Child LockEmphasizes bass frequency so that music is dynamic. Emphasizes low and high frequencies to give sensation to the action and a wider sound ambience. Your personal sound settings.

VOL

H

CH

AV

1 4 7b

2 5 8 0h f

3 6 9SURF

MUSIC

A/CH

THEATRE

This feature enables you to lock channels which you do not wish others e.g. children to watch. You have a choice to lock all channels (inclusive of AV1 or AV2) or individual channel (up to a maximum of 5 channels). Once a channel is locked: if you call channels up with the CHANNEL 7 or 6 keys on the TV, there will be no picture and sound. access to the INSTALLATION sub-menu is disabled You can only call up channels with your remote control. A message LOCKED and CODE appears on the screen each time you try to call up a channel with the controls on the TV. To bypass the lock mode, you will need to use your remote control to key in the 4-digit confidential code that you have entered when you locked it.

y

e 4GAME

SMART

PICTURE SOUND

PERSONAL

L7.3A

20

23

43

44 L7.3A

other features

other features

To lock channelsMENU

To unlock channelsSURF INSTALLATION BRIGHTNESS COLOUR CONTRAST A/CH B 44 28 55

SURF INSTALLATION BRIGHTNESS COLOUR CONTRAST

A/CH B 44 28 55

1. Call up 1st level menu with the key. key to 2. Scroll down with the highlight CHILD LOCK.OFF OFF B A/CH B

1. Call up 1st level menu with the key. key to

MENU

2. Scroll down with the highlight CHILD LOCK.AVL SLEEPTIMER CHILD LOCK SURF INSTALLATION

AVL SLEEPTIMER CHILD LOCK SURF INSTALLATION

OFF OFF B A/CH B

3. Press

or 3. Press

key to enter menu.

or

key to enter menu.

4. Key in the universal code 8888. If you do not key in the code, you will not be able to change anything on this menu.CODE CHANNEL LOCK xxxx 7 NO

CODE CHANNEL LOCK

ALL NO

5. Press or key to select ALL (to lock all channels) or enter a channel number (to lock individual channels). key toCODE CHANNEL LOCK 5 YES

CODE CHANNEL LOCK

xxxx ALL NO

6. Scroll down with the highlight LOCK.CODE CHANNEL LOCK 5 NO

4. Key in the 4-digit confidential code which you have entered when you activate CHILD LOCK mode. If you key in an incorrect code, all items in the child lock menu can be selected, but it is not possible to change any one of them. If you key in a correct code, CHANNEL will be automatically highlighted. Tips : If you forget your confidential code, enter the universal code 8888. 5. Key in a channel number which you wish to unlock. 6. Scroll down with the highlight LOCK. key to

10 Direction for use

CODE CHANNEL LOCK

xxxx 7 YES

7. Press or key to select YES to lock the selected channel/s.

CODE CHANNEL LOCK

xxxx ALL YES

8. Repeat steps 5 to 7 for other channels which you wish to lock. Once you have completed, proceed to the next step.

7. Press or key to select NO to unlock the selected channel. 8. Repeat steps 5 to 7 for other channels which you wish to unlock. Once you have completed, proceed to the next step. 9. Exit with theOSD

CONFIRM CODE CHANNEL LOCK

ALL YES

9. Scroll up with the key to highlight CODE. Key in your own 4-digit confidential code. CONFIRM CODE appears.

10. Key in the 4 digits again to confirm and use it whenever you want to access to locked channels. key.

key.

OSD

11. Exit with the

24

25

other features other features

Surf3SURF

Deleting channels from a surf list1. Press the key to call up channels in the surf list.A/CH

10 Direction for use

SURF

There are 2 selectable functions: 1. Surf : Create a list of channels (maximum 8) whereby when you press A/CH the key on the remote control, you are able to quickly view through all these channels. SURF A/CH 2. A/CH : When this is selected and if you press the key on the remote control, you are able to see the previously watched channel.3 DELETEDSURF

Creating a surf listMENU

SURF INSTALLATION BRIGHTNESS COLOUR CONTRAST

A/CH B 44 28 55

1. Call up 1st level menu with the key. key to highlight

2. As soon as you find the channel you A/CH wish to delete, press the key within 4 seconds or while the channel number is still being displayed. DELETED appears below the channel number. This means the channel is deleted from the surf list. 3. Repeat step 1 to 2 for other channels which you wish to delete from the surf list.

2. Scroll up with the SURF. or key.

3. Select SURF with the key.SURF INSTALLATION BRIGHTNESS COLOUR CONTRAST A/CH B 44 28 55

CHILD LOCK SURF INSTALLATION BRIGHTNESS

B SURF B 44

4. Exit with the

OSD

Selecting alternate channel (A/CH)1. Call up 1st level menu with the key. 2. Scroll up with the SURF.B A/CH B 44MENU

5 ADDED

key to highlight

5. Select a channel. Press the SURF key within 4 seconds or while the channel number is still being displayed. ADDED appears below the channel number. This means the channel is added to the surf list.CHILD LOCK SURF INSTALLATION BRIGHTNESS

3. Select A/CH with the 4. Exit with theOSD

or key.

key.

6. Repeat step 5 for other channels which you wish to add to the surf list.

3 SURF

How to call up channels in the surf list

SURF

A/CH

1. Press the key once and the TV will switch to the next channel which is on the surf list ORSURF

When you are viewing a channel (e.g channel number 6) and if you wish to go back to the previous channel (e.g. SURF A/CH channel number 3), press the key once. If you wish to go back to channel A/CH key number 6 again, press the again.SURF

5 SURFA/CH

Press and hold the key to cycle through all the channels on the surf list.

L7.3A

26

27

45

46(R-Y)_OUT uC AQUA11 Abbreviations

L7.3A

11 AbbreviationsRAM RESET1 RF_AGC RIGHT_OUT ROM SAM SANDCASTLE Random Access Memory Reset signal for the uC Automatic gain control signal I for tuner Audio right ou Read Only Memory Service Alignment Mode Sand castle signal from IC7225-5D to delay line IC7255 and SECAM chrominance decoder IC7241. Clock line of the 12C-bus Data line of the 12C-bus Service Default Mode; predefined mode for faultfinding SECAM reference Sound identification / stereo available / france system "L" Sound IF signal for FM demodulator Switching signal from uC "low" for standby (power supply will be switched to stand-by mode), "high" for normal operation Treble control signal Tuning voltage for tuner Vertical flyback pulse 50Hz vertical flyback pulse used to inform the uC that flyback takes place. This is important for OSD and TXT Voltage on grid 2 of the picture tube Control signal (from uC, but on DC level via RC nework) for volume control of sound processing in sound panel

AV_MUTE AVL_AV2/AVL

B_TXT_OSD BASS BCI BG/1_or_BG/0 K

BL_TXT_OSD BLACKSTR_SW BS1 BS2 CHROMA_O/ NTSC_SW CHROMA_1/BG/L CHROMA_1/ STATUS CHROMA_2/ STATUS CVBS_EXT1 CVBS_EXT2 CVBS_IN CVBS_OUT CVBS_OUT_1 CVBS_SOUND CVBS_TXT DISCHARGE EAR EEPROM ESD ff FL_A G_TXT_OSD GND GRD_LOT HOR.FLYBACK 12C IF INT/EXT L_EXT1 LEFT_OUT MOD_L_1N1 MOD_L_1N2 MOD_R_1N1 MOD_L_1N2 MONO/STROBE/ BG_L MONO_OUT NTSC PAL/SECAM R_TXT_OSD

R-Y output from chroma demodulator Microcomputer Aquadaq layer on the outside of the picture tube Signal to mute the sound on the Audio-out cinch Switching signal from UP to the Auto Volume leveller on the ITT on BTSC Panel or Rear Cinch I/P 2 width CVBS. R and Sound Blue TXT or OSD signal from (C to the video controller IC7225-5C Control signal for BASS Beam Current information Monochrome TV system sound carrier + 5.5 MHz (BG), Sound carrier + 6 MHz(I), Sound carrier + 6.5 MHz (DK) Fast blanking signal to IC7725-5C to display OSD and TXT Black stretch switch TV band selection 1 signal TV band selection 2 signal Switch on signal for NTSC chroma oscillator (3.575 MHz) Switch on signal for BG/L chroma oscillator (3.582 MHz) Switch on signal for NTSC chroma oscillator (3.579 MHz) Signal to select the correct system in case of trinorma CVBS external 1 input signal CVBS external 2 signal CVBS internal 1 (from tuner) CVBS output signal CVBS output signal 1 CVBS for inter carrier sound detector CVBS for TXT processing in uC To have a fast discharge after switching off the set Earth Electrical Erasable Programmable Read Only Memory Electrical Static Discharge Filament (heater voltage) from LOT to the picture tube Filament voltage for CRT Green TXT or OSD signal from the uC to IC7225-5C Ground Ground of LOT Horizontal flyback pulse used for looking the horizontal oscillator Digital Control bus of the microcomputer Intermediate frequency signal for sound processing Switching signal for Internal or external audio + video switching Audio left external 1 Audio left out SCART I/P 1 in left SCART I/P 2 in left SCART I/P 1 in righ SCART I/P 2 in left Strobe signal for HEF 4094 on multi-mono sound panel Audio mono out NTSC colour system PAL or SECAM colour system Blue TXT or OSD signal from the uC to the video controller IC7225 5C

SCL SDA SDM SECAM_REF SID/STA/LL SIF STANDBY

TREBLE V_TUNE VFB VFL

VG2 VOLUME

12 Spareparts listMainpanel12 Spareparts list

L7.3A4822 126 13473 F 220nF 80-20% 50V 4822 126 13482 F 470nF 80/20% 16V 4822 124 81151 F 22F 50V 4822 126 13473 F 220nF 80-20% 50V 4822 126 14043 F 1F 20% 16V 4822 126 13482 F 470nF 80/20% 16V 4822 126 13482 F 470nF 80/20% 16V 4822 126 12944 F 47nF 10% 50V 4822 126 14043 F 1F 20% 16V 4822 126 14043 F 1F 20% 16V 4822 126 13482 F 470nF 80/20% 16V 4822 122 32646 F 5.6nF 10% 50V 5322 121 42386 F 100nF 5% 63V 5322 121 42386 F 100nF 5% 63V 4822 124 40255 F 100F 20% 63V 4822 126 12171 F 3.3nF 20% 1KV 4822 121 42408 F 220nF 5% 63V 4822 121 42868 F 220nF 5% 50V 5322 122 32331 F 1nF 10% 100V 5322 121 42386 F 100nF 5% 63V 4822 122 31173 F 220pF 10% 500V 4822 124 41739 F 47F 20% 160V 4822 122 30103 F 22nF 80% 63V 4822 126 13513 F 8.2nF 10% 50V 4822 121 43526 F 47nF 5% 250V 4822 121 10518 F 250V 390nF 5% 4822 121 43888 F 360nF 5% 250V 4822 124 41984 F 10F 250V 4822 126 13185 F 680pF 10% 500V 4822 126 12638 F 6.8nF 10% B 50V 4822 122 31175 F 1nF 10% 500V 4822 121 43526 F 47nF 5% 250V 4822 126 12239 F 560pF 10% 2KV 4822 126 14053 F 1nF 10% 2KV 4822 126 14184 F 820pF 10% 2KV 4822 121 10739 F 2.2F 5% 160V MPP479 4822 121 70637 F 8.2nF 5% 1600V 4822 121 70649 F 9.1nF 5% 1.6KV 4822 121 40483 F 10nF 10% 400V 4822 121 40488 F 22nF 10% 400V 5322 121 42532 F 18nF 10% 400V 5322 121 44151 F 33nF 10% 400V 4822 121 51319 F 1F 10% 63V 4822 122 31177 F 470pF 10% 500V 4822 121 51252 F 470nF 5% 63V 5322 124 41379 F 2.2F 20% 50V 4822 126 14096 F 560nF 5% 250V 4822 121 40518 F 100nF 10% 250V 4822 121 43823 F 470nF 5% 50V 5322 121 42386 F 100nF 5% 63V 4822 124 11534 F 4.7F 20% 250V 4822 124 80791 F 470F 16V 20% 85C DXH=8X11.5 4822 124 11769 F 220F 20% 50V 4822 124 80791 F 470F 16V 20% 85C DXH=8X11.5 4822 124 80062 F 470F 20% 35V 4822 122 31177 F 470pF 10% 500V 4822 122 31177 F 470pF 10% 500V 4822 126 13589 F 470nF 275V 4822 121 70141 F 33nF 5% 400V 4822 126 12793 F 2.2nF 10% 2KV 4822 126 12793 F 2.2nF 10% 2KV 4822 126 12793 F 2.2nF 10% 2KV 4822 126 11524 F 1.5nF 10% 1KV 4822 121 10486 F 330F 20% 450V 4822 124 41748 F 220F 20% 400V 4822 124 42168 F 330F 400V 4822 126 11524 F 1.5nF 10% 1KV 4822 126 13337 F 220pF 10% 1KV 5322 122 32331 F 1nF 10% 100V 4822 122 50116 F 470pF 10% 1KV 4822 122 33805 F 330pF 10% 63V 4822 124 11571 F 1F 20% 50V 4822 121 10738 F 1nF 2% 50V 4822 124 80059 F 100F 20% 25V 4822 124 81089 F 2.2F 20% 160V 4822 126 14049 F 1.5nF 20% 250V 4822 126 14149 F 330pF 10%R 1KV 4822 124 42336 F 47F 20% 160V 4822 126 13061 F 220nF 20% 25V 4822 126 14149 F 330pF 10%R 1KV 4822 124 81145 16V S 1000F PM20 4822 124 41097 F 220F 20% 16V 4822 124 80499 F 100F 20% 16V 4822 124 80707 F 2200F 20% 25V 4822 126 14087 F 100nF 10% 63V 4822 126 13061 F 220nF 20% 25V 4822 126 13473 F 220nF 80-20% 50V 4822 126 13473 F 220nF 80-20% 50V 4822 126 13482 F 470nF 80/20% 16V 5322 126 10184 F 680P 5% 50V. 5322 126 10184 F 680P 5% 50V. 4822 126 13061 F 220nF 20% 25V 2684 4822 126 13061 F 220nF 20% 25V 5471 5480

47

2349 2351

Various0136 4822 492 70289 SPRING K12 0139 4822 276 13603 SWITCH,MAINS 0140 4822 256 92053 FUSE HOLDER CLICK (PROM) 0141 4822 265 20723 B2P3-VH 0142 4822 265 20723 B2P3-VH 0151 4822 256 10336 LED HOLDER 0177 4822 492 70788 FIX IC 0189 4822 402 10844 PCB RELIEF BRACKET 0191 4822 267 31014 HEADPHONE SOCKET 0191 4822 267 51391 F PHONE 3.5MM STEREO 0210 4822 492 70289 SPRING K12 0211 4822 492 70289 SPRING K12 0231 4822 265 10453 9P 1000 4822 210 10737 UV1355/I 1000 4822 210 10771 UV1355S/I 1000 4822 210 10803 UV1336B/AIS 1000 4822 210 10804 UV1336B/AFS 1000 4822 210 10814 UV1336B/A F 1007 4822 212 11691 FRAME 29" 1015 4822 242 10357 OFWK2960M 1015 4822 242 10874 45.750 000 MHz 1015 4822 242 81556 B39380-K2953M100 1015 4822 242 81964 B39389-G1984M100 1102 4822 242 10316 SFSF6,5MHz BTF21 1104 4822 242 10314 SFSH5,5MHz BTF21 1104 4822 242 10362 SFSH6,0MHz BTF21 1104 4822 242 10363 SFSH4,5MHz BTF21 1206 4822 242 81572 TPS6,0MB-TF21 1207 4822 242 81712 TPWA04B 1207 4822 242 81978 TPS4,5MB-TF21 1208 4822 242 81301 TPS6,5MB-TF21 1209 4822 242 81978 TPS4,5MB-TF21 1275 4822 242 10327 HC49/U 3M575611 1275 4822 242 10356 4,433619MHz HC49/ U 1275 4822 242 10695 4 433 619 MHz 1277 4822 242 10355 3,579545MHz HC49/ U 1277 4822 242 10776 3.579 545 MHz 1278 4822 242 10326 HC49/U 3M582056 1300 4822 242 10359 CSB503F58 1500 4822 070 35002 218005.(5A) 1572 4822 071 51002 19372(1A) 1600 4822 276 13775 SWITCH 1601 4822 276 13775 SWITCH 1602 4822 276 13775 SWITCH 1603 4822 276 13775 SWITCH 1670 4822 218 11573 GP1U28QP 1681 4822 242 10694 12 000 000 MHz

f3171 3178 3234 3249 3277 3342 3346 3360 3401 3402 3403 3405 3405 3407 3407 3409 3430 3443 3451 3453 3454 3462 3465 3480 3481 3481 3482 3482 3485 3486 3487 3488 3490 3491 3492 3501 3502 3504 3505 3507 3509 3510 3511 3513 3514 3515 3518 3525 3542 3552 3553 3554 3571 3571 3572 3601 3602 3603 3685 4822 051 20394 4822 051 20394 4822 052 10228 4822 051 20106 4822 117 11437 4822 051 20475 4822 051 20121 4822 051 20121 4822 111 31051 4822 111 31051 4822 111 31051 4822 050 21802 4822 050 22202 4822 050 21802 4822 050 22202 4822 052 10158 4822 052 10478 4822 051 20684 4822 053 11479 4822 117 12822 4822 053 11333 4822 117 12514 4822 052 10109 4822 050 22703 4822 050 24303 4822 050 28203 4822 050 24303 4822 050 25603 4822 052 10478 4822 052 11108 4822 052 11108 4822 052 10478 4822 052 10338 4822 052 11108 4822 052 11108 4822 117 12181 4822 053 21225 4822 117 12728 4822 252 60151 4822 116 82776 4822 117 11488 4822 117 11488 4822 117 12568 4822 117 11719 4822 050 28204 4822 117 12765 4822 116 83027 4822 052 10339 4822 053 21475 4822 051 20332 4822 051 20121 4822 117 11139 4822 050 21504 4822 050 21604 4822 101 11186 4822 116 90885 4822 117 12168 4822 117 12167 4822 051 20683 390k 5% 0.1W 390k 5% 0.1W 22 5% 0.33W 10M 5% 0.1W 8k2 1% 0.1W 4M7 5% 0.1W 120 5% 0.1W 120 5% 0.1W 33 5% 33 5% 33 5% 1k8 1% 0.6W 2k2 1% 0.6W 1k8 1% 0.6W 2k2 1% 0.6W 15 5% 0.33W 47 5% 0.33W 680k 5% 0.1W 47 5% 2W 47 5% 5W 33k 5% 2W 6k8 5% 5W 10 5% 0.33W 27k 1% 0.6W 43k 1% 0.6W 82k 1% 0.6W 43k 1% 0.6W 56k 1% 0.6W 47 5% 0.33W 1 5% 0.5W 1 5% 0.5W 47 5% 0.33W 33 5% 0.33W 1 5% 0.5W 1 5% 0.5W 470 20% 0.5W 2M2 5% 0.5W 9 200V S 100R SURGE PROTECT DSP-510N-A21F A 22 33k 5% 3W 33k 5% 3W RESISTOR 7 WATT(MOX) 180k 820k 1% 0.6W 47 20% 3W1 R22 5% 3W 33 5% 0.33W 4M7 5% 0.5W 3k3 5% 0.1W 120 5% 0.1W 1k5 1% 0.1W 150k 1% 0.6W 160k 1% 0.6W 470 30%LIN 0.1W 8k2X6 2k2 X 6 8k2 X 12 68k 5% 0.1W

2353 2354 2355 2357 2359 2369 2383 2385 2387 2388 2401 2402 2403 2404 2409 2409 2422 2426 2448 2450 2451 2451 2456 2457 2457 2458 2459 2460 2461 2462 2463 2463 2463 2464 2465 2465 2466 2467 2468 2468 2469 2470 2471 2472 2475 2480 2481 2484 2485 2486 2487 2488 2489 2490 2491 2500 2501 2502 2504 2505 2507 2508 2508 2508 2510 2511 2517 2518 2524 2530 2531 2540 2541 2545 2550 2551 2554 2560 2561 2562 2563 2571 2575 2601 2610 2615 2650 2660 2661 2680

4822 157 11547 1000H 10% 8X10 5322 157 51687 FXDIND A 04 39H PM10 (UAW) 5500 4822 157 11523 LINE 5mH /2A 5502 4822 157 10476 DMF-2820H 5502 4822 157 11538 10mH 2A 5515 4822 157 11477 LAL02TB2R2J 5516 4822 157 60171 HF70BTL3.5X9R 5518 4822 526 10704 100mH z 5520 4822 526 10704 100mH z 5540 4822 157 71249 IND FXD LAL02 A 4U7 PM5 A 5545 4822 146 10964 TFM SMT 130V 5545 4822 157 11529 SMT LAYER WIRE 5550 4822 157 60171 HF70BTL3.5X9R 5551 4822 157 71401 27H 5572 4822 157 60171 HF70BTL3.5X9R 5573 4822 157 60171 HF70BTL3.5X9R 5574 4822 157 11327 1U 20% 5574 4822 157 11408 2.2H 10% 8X10 5603 4822 157 11524 8.2H 5% 2.3X3.4 5620 4822 157 11525 6.8H 5% 2.3X3.4

d6040 6112 6114 6263 6264 6265 6401 6402 6403 6421 6460 6461 6465 6466 6470 6480 6485 6486 6487 6488 6490 6505 6505 6507 6508 6511 6514 6515 6517 6550 6560 6570 6590 6653 6663 5322 130 34955 4822 130 83757 4822 130 83757 4822 130 83757 4822 130 83757 4822 130 83757 4822 130 42488 4822 130 31024 4822 130 42488 4822 130 34258 4822 130 41275 4822 130 41602 4822 130 42606 4822 130 42606 4822 130 30862 4822 130 34379 4822 130 42488 5322 130 31938 4822 130 42488 4822 130 42488 5322 130 31938 4822 130 10741 4822 130 11185 4822 130 42606 4822 130 42606 4822 130 41487 4822 130 31024 4822 130 42606 4822 130 42606 4822 130 10754 4822 130 10256 4822 130 10256 4822 130 10256 4822 130 34382 4822 130 82029 BA482 BAS216 BAS216 BAS216 BAS216 BAS216 BYD33D BZX79-B18 BYD33D BZX79-B56 BY228 BYW95C BYD33J BYD33J BZX79-B9V1 BZX79-B27 BYD33D BYV27-200 BYD33D BYD33D BYV27-200 GBU6J GBU4J BYD33J BYD33J BYV95C BZX79-B18 BYD33J BYD33J BY229X-600 EGP20DL-5300 EGP20DL-5300 EGP20DL-5300 BZX79-B8V2 LTL307P

ce7001 7002 7003 7004 7005 7101 7115 7117 7118 7204 7214 7215 7216 7217 7220 7225 7225 7225 7225 7255 7260 7277 7278 7310 7311 7312 7314 7315 7317 7401 7401 7420 7460 7461 7470 7480 7481 7482 7518 5322 130 60508 5322 130 60508 5322 130 60508 5322 130 60508 4822 130 60511 4822 130 60511 4822 130 60511 4822 130 60511 4822 130 60511 4822 130 60511 4822 130 60511 4822 130 60511 5322 130 60508 5322 130 60508 4822 130 60511 4822 209 15685 4822 209 15828 4822 209 16309 4822 209 16311 4822 209 12635 5322 130 60508 4822 130 42353 4822 130 42353 4822 209 33293 4822 209 13646 4822 209 32918 4822 130 60511 4822 209 13181 4822 130 40981 4822 209 13176 4822 209 16352 5322 130 60508 4822 130 63569 4822 130 42159 4822 130 63726 4822 130 40981 4822 130 44568 5322 130 60508 4822 130 63698 BC857B BC857B BC857B BC857B BC847B BC847B BC847B BC847B BC847B BC847B BC847B BC847B BC857B BC857B BC847B TDA8844/N1 TDA8347C/N3 TDA8377/N3 TDA8375A/N3 TDA4665/V4 BC857B BSF19-F2 BSF19-F2 TDA9860/V2 TDA7057AQ/N2 AN7318S BC847B TDA9850/V1 BC337-25 TDA9302H STV9379FA BC857B BU1508DX BF819 MTP3055EFI BC337-25 BC557B BC857B STH8NA60FI

g2002 2050 2128 2198 2199 2209 2215 2224 2275 2277 2278 2283 2284 2285 2315 2316 2323 2324 2325 2326 2327 2328 2337 2339 2342 2346 2347 2348 4822 124 80791 F 470F 16V 20% 85C DXH=8X11.5 4822 126 13486 F 15pF 2% 63V 5322 126 10465 F 3.9nF 10% 50V 4822 122 33805 F 330pF 10% 63V 4822 122 33805 F 330pF 10% 63V 4822 126 13473 F 220nF 80-20% 50V 4822 126 13061 F 220nF 20% 25V 4822 124 11576 F 220F 20% 25V 4822 126 13486 F 15pF 2% 63V 4822 126 13486 F 15pF 2% 63V 4822 126 13486 F 15pF 2% 63V 4822 126 12944 F 47nF 10% 50V 4822 126 12944 F 47nF 10% 50V 4822 126 12944 F 47nF 10% 50V 4822 126 13482 F 470nF 80/20% 16V 4822 126 13482 F 470nF 80/20% 16V 4822 121 43823 F 470nF 5% 50V 4822 121 43823 F 470nF 5% 50V 4822 121 43823 F 470nF 5% 50V 4822 121 43823 F 470nF 5% 50V 4822 126 13482 F 470nF 80/20% 16V 4822 126 13482 F 470nF 80/20% 16V 4822 122 32646 F 5.6nF 10% 50V 4822 126 14043 F 1F 20% 16V 4822 124 80061 F 1000F 20% 25V 4822 126 14043 F 1F 20% 16V 4822 126 14043 F 1F 20% 16V 4822 126 14043 F 1F 20% 16V

b5003 5040 5051 5054 5101 5101 5101 5205 5206 5206 5260 5260 5260 5260 5445 5445 5445 4822 157 11518 5.6H 5% 2.3X3.4 4822 157 70439 FOR MK2 AND ANUB S. 4822 152 20547 IND FXD LAL04 A 0U68 PM20 A 4822 157 11519 1.2H 5% 2.3X3.4 4822 157 11515 12H 5% 2.3X3.4 4822 157 11516 15H 5% 2.3X3.4 4822 157 11526 22H 5% 2.3X3.4 4822 157 11517 10H 5% 2.3X3.4 4822 157 11518 5.6H 5% 2.3X3.4 4822 157 11524 8.2H 5% 2.3X3.4 4822 157 11326 IF COIL 77.8mH z 4822 157 11514 76mH z 4822 157 11527 IFT COIL 91.5mH z 4822 157 11528 IFT COIL 77.8mH z 4822 146 10961 FLYBACK TRANSFORMER 4822 146 10963 FLYBACK TRANSFORMER 4822 146 10966 FLYBACK TRANSFORMER POWER 4822 157 11521 33H 10% 8X10 4822 157 71266 27H 4822 157 11522 LIN. CORRECTOR COIL 4822 157 11546 LINEARITY CORRECTOR COIL 4822 142 40351 LINE DRIVE TRAFO -CU15 4822 157 71405 BRIDGE COIL -CI15 4822 140 10509 BRIDGE COIL U15 4822 158 10728 TRANSF. 11H

5451 5451 5457 5457 5461 5463 5465 5470

487520 7541 7542 7570 7581 7600 7600 7600 7600 7603 7608 7610 7620 7650 7651 7681 7682 4822 209 15684 4822 209 15829 5322 130 60508 4822 209 81397 4822 209 71634 4822 209 15831 4822 209 16308 4822 209 16312 4822 209 16459 4822 130 60511 4822 130 60511 4822 209 73852 4822 209 15822 4822 130 60511 4822 130 60511 4822 130 60511 4822 130 60511

L7.3AMC44603AP TDA8139 BC857B TL431CLPST TCDT1101G P87C766BDR/01 P87C770AAR/40 SAA5297PS/051 P83C366BDR/016 BC847B BC847B PMBT2369 ST24W04B6 BC847B BC847B BC847B BC847B

12 Spareparts list

CRT panel g2830 2840 2841 2843 2845 4822 121 51473 4822 124 11565 4822 126 13599 4822 126 12278 F 470nF 20% 63V F 10F 20% 250V F 3.3nF 10% 500V F 3300pF 10%) 2KV 4822 122 31175 F 1nF 10% 500V

f3832 3834 3836 3840 3841 3842 3843 3845 4822 117 12516 4822 117 12516 4822 117 12516 4822 052 10109 4822 052 10108 4822 052 10108 4822 117 11896 4822 117 13016 680 2%0.5W 680 2%0.5W 680 2%0.5W 10 5% 0.33W 1 5% 0.33W 1 5% 0.33W 1k5 20% 0.5W 1M A/50V MAX 115V

Audio panel ce7830 1204 4822 209 16321 TDA6107Q/N1 4822 242 10769 18.432 000 MHz

g2214 2216 2217 2220 2221 2225 2226 2239 2240 4822 126 13486 4822 126 13061 4822 126 13061 4822 126 13061 4822 126 13061 5322 122 32286 5322 122 32286 4822 122 33172 4822 122 33172 F 15pF 2% 63V F 220nF 20% 25V F 220nF 20% 25V F 220nF 20% 25V F 220nF 20% 25V F 3.3pF 5% 50V F 3.3pF 5% 50V F 390pF 5% 50V F 390pF 5% 50V

f3243 3244 4822 117 11437 8k2 1% 0.1W 5322 117 12487 1k RC12G 1% 0.125W 3247 4822 052 10109 10 5% 0.33W

b5206 4822 157 11515 12H 5% 2.3X3.4

ce7202 7202 7209 7214 7215 7216 4822 209 15832 4822 209 16307 4822 130 60511 4822 130 40981 4822 130 60511 4822 130 60511 MSP3410D-PP-B4 MSP3400C-C8 BC847B BC337-25 BC847B BC847B